/Engine/Source/Runtime/Engine/Classes/Engine/Texture.h
Initialize the source data with the given size, number of mips, and format.
void InitWithCompressedSourceData ( int32 NewSizeX, int32 NewSizeY, int32 NewNumMips, ETextureSourceFormat NewFormat, [UE::Serialization::FEditorBulkData::FSharedBufferWithID](API\Runtime\CoreUObject\Serialization\FEditorBulkData\FSharedBufferWithID) NewSourceData, ETextureSourceCompressionFormat NewSourceFormat )